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First-principles investigation on the impact of copper concentration on zinc telluride as the back contact for cadmium telluride solar cells

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dc.citedby0
dc.contributor.authorAhmad N.I.en_US
dc.contributor.authorDoroody C.en_US
dc.contributor.authorNorizan M.N.en_US
dc.contributor.authorAhmad M.F.en_US
dc.contributor.authorRahman K.S.en_US
dc.contributor.authorRadzwan A.en_US
dc.contributor.authorALOthman Z.A.en_US
dc.contributor.authorKatubi K.M.en_US
dc.contributor.authorAlzahrani F.M.en_US
dc.contributor.authorAmin N.en_US
dc.contributor.authorKar Y.B.en_US
dc.contributor.authorid57200991933en_US
dc.contributor.authorid56905467200en_US
dc.contributor.authorid57226822517en_US
dc.contributor.authorid55779469900en_US
dc.contributor.authorid56348138800en_US
dc.contributor.authorid57201471013en_US
dc.contributor.authorid35085715800en_US
dc.contributor.authorid57208402522en_US
dc.contributor.authorid57208397196en_US
dc.contributor.authorid7102424614en_US
dc.contributor.authorid58072938600en_US
dc.date.accessioned2025-03-03T07:44:36Z
dc.date.available2025-03-03T07:44:36Z
dc.date.issued2024
dc.description.abstractCadmium telluride (CdTe) solar cells have attracted a lot of interest in recent years, attributed to their low cost and eco-friendly fabrication technique. However, the back contact is still the key issue for further improvement in device performance due to the work function difference between p-CdTe and metal contacts. In this study, the interatomic characteristics of zinc telluride (ZnTe) and Cu-doped ZnTe (ZnTe:Cu) as a back surface field (BSF) in CdTe structure is investigated using first-principles density functional theory (DFT) to overcome the Schottky barrier in CdTe solar cells. The incorporation of different doping levels of copper (Cu) in ZnTe on an atomic scale, where Zn1?xTe:Cux (x = 0, 2, 4, 6, 8, and 10) as the potential back surface field layers is investigated. The effect of doping concentration on electrical characteristics such as bandgap structure and density of states (DOS) were examined via ab initio with the Hubbard U (DFT + U) correction. The results showed an interesting gradual decrease in the bandgap energy of ZnTe from 2.24�eV to 2.10�eV, 1.98�eV, 1.92�eV, 1.88�eV, and 1.87�eV for the incremented value of Cu content of 3.13%, 6.25%, 9.38%, 12.50%, and 15.63%, respectively. Accordingly, it has been found that controlling of the effective copper doping, i.e., concentration, is crucial for developing efficient back contact junctions for high-efficiency CdTe thin-film solar cells. ? 2024, The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature.en_US
dc.description.natureFinalen_US
dc.identifier.ArtNo136
dc.identifier.doi10.1007/s00339-024-07286-0
dc.identifier.issue2
dc.identifier.scopus2-s2.0-85183363902
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85183363902&doi=10.1007%2fs00339-024-07286-0&partnerID=40&md5=693c27660fc77d6b063f10d545cdcb0f
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/36779
dc.identifier.volume130
dc.publisherSpringer Science and Business Media Deutschland GmbHen_US
dc.sourceScopus
dc.sourcetitleApplied Physics A: Materials Science and Processing
dc.subjectCadmium telluride
dc.subjectCopper compounds
dc.subjectEnergy gap
dc.subjectII-VI semiconductors
dc.subjectSchottky barrier diodes
dc.subjectSemiconductor doping
dc.subjectThin film solar cells
dc.subjectThin films
dc.subjectZinc compounds
dc.subjectBack contact
dc.subjectBack surface field
dc.subjectBacksurface field
dc.subjectCadmium telluride
dc.subjectCadmium telluride solar cells
dc.subjectDensity functional theory
dc.subjectDensity-functional-theory
dc.subjectEnergy
dc.subjectThin-films
dc.subjectZinc tellurides
dc.subjectDensity functional theory
dc.titleFirst-principles investigation on the impact of copper concentration on zinc telluride as the back contact for cadmium telluride solar cellsen_US
dc.typeArticleen_US
dspace.entity.typePublication
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